Horsepower hp is a unit of measurement of power the rate at which work is done. There are many different standards and types of horsepower. Two common definitions. BibMe Free Bibliography Citation Maker MLA, APA, Chicago, Harvard. Lesson One An Introduction to Blissymbols Douglas Crockford c 2003 Blissym Language Institute www. It is easier to learn to read and write in blissymbols. Add it to your bibliography and continue citing to build your works cited list. Download bibliography. Download bibliography. Download your bibliography in either the APA, MLA, Chicago or Turabian formats.